JPH1142292A - Hydrant apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To carry out fire extinguishing activities easily and quickly by pulling out a hose by a lighter force during the extinguishing. SOLUTION: A payoff-assisting mechanism is provided to lower a force for pulling out a hose by applying a rotating force in the direction for paying off the hose to a hose reel 3 when pulling out a hose 6 with a nozzle 5. The payoff-assisting mechanism used is a water wheel mechanism which is driven by supplying pressurized water for extinguishing to the hose 6 with a nozzle. A tensile force working on the hose at the time of pulling out the hose 6 with a nozzle is detected by a tensile detection pin 7 to actuate the payoff-assisting mechanism.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fire hydrant device installed in a tunnel or the like and used for extinguishing a vehicle fire.
In particular, the present invention relates to a fire hydrant device that opens a door in the event of a fire and draws out a hose wound on a reel while discharging water from a nozzle to extinguish a fire.

[0002]

2. Description of the Related Art Conventionally, as a fire extinguisher device installed in a tunnel such as an expressway or a motorway, there is known, for example, Japanese Utility Model Publication No. 3-37646. In such a fire hydrant device, a hose with a nozzle is housed in a state of being wound on a reel in a door of a cabinet case installed on a tunnel wall surface. In the event of a fire, by opening the door, the reel installed inside the door is exposed in front of the cabinet and the hose with nozzle can be pulled out. In this type of fire hydrant device, it is assumed that the fire hydrant is operated by one person.For this reason, the water discharge lever installed in the door is operated to the open position, and the pressurized fire extinguishing water is discharged from the nozzle, and the fire hydrant is discharged from the nozzle. Pull out the hose while extinguishing water to extinguish the fire.

[0003]

However, in such a conventional fire hydrant device, since it is necessary to pull out the hose from the reel by itself while discharging fire-extinguishing water, it is necessary to pull out the hose with considerable force and vigorously. When the length of the hose is increased, the weight of the hose during water discharge is increased, which requires a greater force, and the fire extinguishing operation may be hindered due to insufficient pulling of the hose.

After the fire is extinguished, it is necessary to perform a recovery operation of rewinding the hose drawn out by the attendant to the reel. However, since a relatively rigid rubber hose must be wound on the reel, the hose must be wound. It must be taken up by pushing it onto the reel. Also, when winding on a reel, the hose must be wound on the reel so that the hoses are arranged in order in order to prevent the hose from being difficult to pull out at the next use. For this reason, there has been a problem that the recovery operation of winding the hose around the reel is difficult and time-consuming.

The present invention has been made in view of such conventional problems, and an object of the present invention is to provide a fire hydrant device that can easily and quickly extinguish a fire by allowing a hose to be pulled out with a small force when extinguishing a fire. I do. It is a further object of the present invention to provide a fire hydrant device that enables easy and quick recovery work of winding a drawn hose around a reel.

[0006]

In order to achieve this object, the present invention is configured as follows. First, according to the present invention, a hose with a nozzle is housed in a housing provided with a door that can be opened and closed while being wound around a reel, and is installed in a tunnel or the like where the door is opened when the fire is extinguished and the hose with the nozzle is pulled out to extinguish the fire. For fire hydrant equipment.

In the fire hydrant apparatus according to the present invention, an unwinding assist mechanism for applying a rotational force in the hose unwinding direction to the reel to reduce the hose withdrawing force when the hose with the nozzle is withdrawn is provided. It is characterized by. By providing such an unwinding assist mechanism, for example, the hose withdrawal force that required about 40 kg was applied, and the unwinding assist mechanism applied an auxiliary power of, for example, 10 kg.
It can be reduced to about 30Kg. With this level of power, it can be pulled out relatively easily near the fire vehicle while discharging water from the nozzle with the power of one adult. But it can be enough.

The unwinding assist mechanism is a water wheel mechanism driven by supplying pressurized fire extinguishing water to a hose with a nozzle. According to this water wheel mechanism, pressurized fire extinguishing water can be used as a drive source, and the water wheel mechanism can be integrated with the reel, so that the size can be reduced. Further, a controller is provided for detecting the tension applied to the hose when the hose with the nozzle is pulled out and operating the unwinding assist mechanism. Thus, the unwinding assist mechanism can be operated by simply pulling out the hose to assist in pulling out the hose, without requiring any special operation artificially.

Further, the present invention is characterized in that when winding a hose with a nozzle onto a reel, a winding assist mechanism is provided for reducing the hose winding force by applying a rotating force to the reel in the hose winding direction. I do. By providing such a winding assist mechanism, the hose can be wound on the reel simply by lightly feeding the hose, and even a rubber hose having weight and rigidity can be easily wound on the reel,
Recovery is quick.

[0010] The winding assist mechanism is a rotary drive mechanism using an electric motor as a drive source. In this case, since the fixed installation in the apparatus requires a complicated structure and an installation space, the winding assist mechanism is a rotary drive mechanism configured as a portable unit using an electric motor as a drive source. Is provided, and is mounted on the rotating shaft of the reel and driven when the hose is wound, thereby reducing the hose winding force.

The winding assist mechanism may be a water wheel mechanism driven by flowing pressurized fire extinguishing water to a drainage system. Further, the winding assist mechanism includes a hose alignment mechanism that aligns a hose position on the reel in conjunction with the hose winding by the reel. By providing this hose alignment mechanism, the staff simply sends the hose lightly to the reel without worrying about the position of the hose on the lease,
The hose can be wound in order so that the hose can be easily wound and does not hinder the next hose withdrawal.

[0012]

FIG. 1 shows an embodiment of a fire hydrant apparatus according to the present invention, in which a cabinet case door is opened. In FIG. 1, the fire hydrant device of the present invention has a cabinet case 1 installed in a state of being embedded in, for example, a tunnel wall surface, and has a door 2 which can be opened and closed up and down at a front portion of the cabinet case 1 with a lower portion serving as a fulcrum. A hose reel 3 is rotatably provided inside the door 2. A hose 4 having a length of, for example, 25 meters is wound around the hose reel 3, and a nozzle 5 is attached to a tip of the hose 4. .

A guide gate 6 is provided at a portion where the hose 4 is drawn from the hose reel 3. The guide gate 6 has a pair of guide rollers 6a erected on the back surface of the door 2 and the upper part thereof is connected by a guide arm 6d.
When the hose 4 is pulled out through the hose reel 3 in either the left or right direction with respect to the hose reel 3, the hose 4 can be smoothly drawn out by the guide roller 6a.

A hose alignment mechanism 8 is provided behind the guide gate 6. The hose alignment mechanism 8 includes the hose reel 3
In order to arrange the hoses on the drum of the hose reel 3 in order when the hose 4 is wound up, the hose 4 is moved up and down in conjunction with the retraction of the hose 4 as will be described later. It guides the winding position. Further, a tension detection pin 7 protrudes behind the hose alignment mechanism 8. The tension detection pin 7 protrudes from the lever of the tension detection mechanism of the hose 4 housed inside the door 2, and moves the tension detection pin 7 by pulling the hose 4 when the hose 4 is pulled out. Withdrawal of the hose 4 is detected by a switch.

When the pulling out of the hose 4 is detected by the movement of the tension detecting pin 7, for example, when the water discharging lever 70a is opened, the unwinding assist mechanism using, for example, a water wheel unit installed below the hose reel 3 When actuated, an auxiliary driving force is applied to rotate the hose reel 3 in the unwinding direction of the hose 4, in this case, counterclockwise as viewed from above.

A connector 10 and a switch 11 are provided on the left side of the cabinet case 1 with the door 2 opened.
The connector 10 is used for power supply by connecting a connector cable of a portable unwinding assist unit using an electric motor, and turns on the switch 11 with the connector cable of the unwinding assist unit connected to the connector 10. Power can be supplied.

Further, on the left side of the cabinet case 1, a fire extinguisher storage door 12 is provided. Above the fire extinguisher storage door 12, a fire alarm panel 1 equipped with a transmitter 14, a fire light 15, and the like is provided.
3 are formed. FIG. 2 shows an embodiment of an unwinding water wheel unit which operates as an unwinding assist mechanism integrally provided below the hose reel 3 of FIG. 1 together with the hose reel.

In FIG. 2, the hose reel 3 has upper and lower face plates 19a and 19b fixed to both sides of a central drum portion 18, and the hose 4 is wound around the drum portion 18 as shown by a broken line. The hose reel 3 includes an upper bearing portion 20 in a storage portion including upper and lower fixed frames 16a and 16b fixed by a plurality of support arms 17 arranged in a circumferential direction.
And is rotatably mounted with the lower bearing portion 22. An unwinding water turbine unit 21 is provided below the lower bearing portion 22.
Is provided. As is apparent from the partially cutaway view of FIG. 3, the unwinding water turbine unit 21 has a cover 27 fixed to a ring-shaped casing 28 by screwing, and a plurality of impellers therein. Water wheel 29 with 29a
Are fixed to the rotary shaft tube 31 and rotatably mounted on the inlet fixed shaft tube 30 on the fixed side.

Referring again to FIG. 2, the inside of the bearing portion 22 having the unwinding turbine unit 21 and the hose reel 3 is
A pipe line for supplying pressurized fire-extinguishing water to the hose side is provided. The solenoid valve 25A,
25B is connected by piping 23a, 23b, 23c. A pipe 23d branched from the solenoid valve 25A is connected to a water turbine nozzle 24 of the unwinding water turbine unit 21. The water turbine nozzle section 24 supplies pressurized fire extinguishing water supplied by a pipe to the impeller 29a of the water turbine 29, as shown by the nozzle hole 24a in FIG.

The solenoid valves 25A and 25B are closed in the non-energized state, and in FIG. 1, when the hose 4 is pulled out and the pulling out of the hose is detected by the movement of the tension detecting pin 7, it will be clarified later. It is opened by being energized by the controller, and the pressurized fire extinguishing water supplied to the pipe 23a is supplied to the unwinding water turbine unit 21 via the solenoid valve 25A, and simultaneously supplied to the hose 4 of the hose reel 3 via the solenoid valve 25B. Supply.

The pressurized fire extinguishing water supplied to the unwinding water turbine unit 21 through the solenoid valve 25A impinges on the impeller 29a of the water turbine 29 from the nozzle hole 24a to apply a rotating force to the center as shown in FIG. It flows out through the outer portion of the provided rotating shaft tube 31 to the portion of the pipe 23d in FIG.
The fire extinguishing water that has flowed in from the solenoid valve 25B side is merged and supplied to the hose 4 from the hose connection portion 26.

FIG. 4 shows the bearing portion 22 of the unwinding turbine unit 21 of FIG. 2 in a half sectional view in the axial direction. The bearing portion 22 of the unwinding turbine unit 21 includes an inlet fixed shaft tube 30, a center rotating shaft tube 31, and an upper outlet shaft tube 32 from below. Central rotating shaft tube 3
The water turbine 2 is attached to the water turbine shaft 31a by a lock pin 38.
9 is fixed.

The cover 2 shown in FIG.
7 and the casing 28 are located, the cover 27 and the casing 28 are on the fixed side, and the rotating shaft tube 31 to which the water turbine 29 is fixed is attached to the lower bearing 33 and the upper bearing It is rotatably supported by 39. Lower bearing 33
Replaces the bearing case with the cover 27 of the turbine unit 21.
The fixing ring 34 is screwed into the screw portion of the bearing 33 outside the case from below, and a seal 35 is interposed inside the fixing ring 34 to prevent water leakage.

The inlet fixed shaft tube 30 has an upper end fitted into a fixing ring 34,
An O-ring 36 positioned by a spacer 37 screwed and fixed is interposed. Inlet fixed shaft tube 3
2, the position is determined when the pipes 23a to 23c are fixedly installed in the door as shown in FIG. 2, and the upper part of the inlet fixed shaft pipe 30 is fixed by O in the fixed installation state as shown in FIG.
The rotating shaft tube 31 is fitted through a ring 36 into an opening of a fixed ring 34 that rotatably supports the rotating shaft tube 31.

The upper bearing 39 for rotatably supporting the rotating shaft tube 31 is disposed by fitting the outlet shaft tube 32 into the cylindrical shaft portion 28a at the center of the casing 28, and the inside of the bearing 39 is provided. Is provided with a seal 40 to prevent water leakage. Outlet shaft tube 32
Of the hose reel 3 is fastened by a bolt 41 and a nut 42 to the lower face plate 19b of the hose reel 3 with its flange.

Further, the outlet shaft tube 32 is fixed to the rotating shaft tube 31 by screwing a bolt 43 from the side surface to the side surface of the rotating shaft tube 31 via a spacer 44 therebetween, and the outlet shaft tube 31 is integrated with the rotating shaft tube 31. The shaft tube 32 rotates.
The outlet shaft tube 32 has a threaded portion 32b at the end, and the threaded portion 32b is connected to the pipe 2 as shown in FIG.
The 3d elbow is screwed in, and the hose 4 is connected by the hose connection portion 26.

As is apparent from the structure of the bearing portion 22 shown in FIG. 4, the rotation of the water wheel 29 which receives the pressurized water for fire extinguishing is transmitted to the rotary shaft tube 31 and is integrated with the rotary shaft tube 31. By rotating the face plate 19b of the hose reel 3 via 32, the driving force of the water wheel 29 is transmitted to the hose reel 3 to assist the hose pulling force. FIG. 5 is an explanatory view of a tension detecting mechanism incorporated in the door 2 from which the tension detecting pin 7 of FIG. 1 protrudes. FIG. 5A shows a tension detecting mechanism 45 in a state where the hose 4 is stored, in which a lever 46 is rotatably mounted on a fulcrum shaft 47, and a tension detecting pin 7 stands on the tip of the lever 46. . A spring 48 is provided on the opposite side of the fulcrum shaft 47 of the lever 46, and a brake pad 49 provided in the middle of the lever 46 on the tension detecting pin 7 side is pressed against the side surface of the face plate of the hose reel 3 to stop braking. I have.

A limit switch 50 is provided inside the lever 46, and the switch operating piece of the limit switch 50 is pressed off by the lever 46 in the hose storage state shown in the drawing to be in a switch-off state. In this retracted state of the hose, since the hose 4 having the nozzle 5 at the tip is not subjected to a towing force, the hose 4 is bent as shown in the drawing by being pressed by the tension detecting pin 7 of the lever 46 by the force of the spring 48. And put the brake pad 49 on the hose reel 3
At the same time, the braking is stopped, and the limit switch 50 is turned off.

In this state, when the hose 4 provided with the nozzle 5 is pulled out as shown in FIG. 5B, the tension is applied to the hose 4 so that the tension detecting pin 7 is opposed to the spring 48 and the lever 46 is pulled out.
Is turned outward, braking is released by releasing the brake pad 49 from the peripheral surface of the hose reel 3, and at the same time, by releasing the switch operating piece of the limit switch 50, the hose 4 can be pulled out by switch-on.

When the drawer is detected by turning on the limit switch 50, the solenoid valves 25A and 25A shown in FIG.
5B is opened by being energized by the controller, and the hose reel 3 is assisted by supplying pressurized fire extinguishing water to the unwinding water wheel unit 21. FIG. 6 is an embodiment of a winding assist mechanism applied to the fire hydrant device of FIG.
It is characterized by using a portable take-up assist unit that is portable.

In FIG. 6, an opening 65 is provided at the center of the fixed frame 16a on the upper part of the hose reel 3 provided with the unwinding water wheel unit 21, and the upper part of the hose reel 3 is inserted into the opening 65. The connecting shaft portion 66 extending from the bearing portion 20 is disposed. For the connecting shaft 66,
A winding assist unit 61 for assisting the winding drive of the hose reel can be mounted.

The winding assist unit 61 is provided with a coupling 64 for transmitting a driving force attached to the end face of the connecting shaft 66 at the output end of a motor 62 with a speed reducer.
A support frame 63 that supports a disk-shaped ring base with respect to the motor 62 is mounted around the coupling 64. The support frame 63 is mounted on the fixed frame 16 a on the hose reel 3 side. Can be mounted on the connecting shaft 66 of the hose reel 3.

A connector cable 68 is drawn out of the motor 62 of the winding assist unit 61. When the winding assist unit 61 is used, the connector of the connector cable 68 is connected to the door 2 of the cabinet case 1 shown in FIG. To the connector 10 provided inside the open side,
Turning on the switch 11 supplies power to the motor 62.

The motor 6 of the winding assist unit 61
A switch 67 is provided on the side surface of the motor 2, and the motor 62 is rotated by turning on the switch 67 to assist the winding rotation of the hose reel 3 via the coupling shaft 66 by the coupling 64. ing. In the winding assist unit 61 shown in FIG. 6, the winding assist unit 61 is artificially mounted on the fixed frame 16a of the hose reel 3 by the fixed frame 63. By providing a threaded wing nut or the like for supporting and fixing in advance, the winding assist unit 61 can be easily attached and fixed to the hose reel 3 side to wind the hose reel.

FIG. 7 is an explanatory view of the hose aligning mechanism 8 which operates in conjunction with the rotation of the hose reel when the hose is wound by mounting the winding assist unit 61 shown in FIG. The hose alignment mechanism 8 has a screw shaft 51 rotatably mounted on the door back plate 2a, and a lifter 56 having a nut-shaped screw hole is screwed into the screw shaft 51. A pulley 52 is mounted below the screw shaft 51, and the pulley 52 is connected to a pulley 54 of a motor 53 via a belt 55.

A guide shaft 57 stands on the door back plate 2a with respect to the screw shaft 51, and a guide lifter 58 is incorporated in the guide shaft 57 so as to be slidable in the vertical direction. The support arm 5 is provided for the lifter 56 of the screw shaft and the guide lifter 58 of the guide shaft 57.
9, a hose ring 60 is attached, and through this hose ring 60, as shown in FIG.
The hose 4 provided with is drawn.

The motor 53 is driven to rotate in conjunction with the rotation of the hose reel 3 in the winding direction by the winding assist unit 61 as shown in FIG. For example, raise the lifter 56
When it comes to the uppermost part, it reciprocates in the up and down direction to reverse and descend. With the vertical movement of the hose ring 60 by the lifter 56 in such a hose alignment mechanism 8,
As in the case of the hose reel 3 in FIG. Further, the rotation drive of the motor 53 may be step-wise, for example, may be performed intermittently so as to move the lifter 56 by the hose diameter every time one rotation of the reel is detected.

FIG. 8 is an explanatory diagram of a piping system for pressurized fire extinguishing water and a control system by a controller in the fire hydrant device of the present invention having the structure shown in FIGS. First, in the piping system, the piping 23 to which the pressurized fire extinguishing water is supplied is connected to the water discharge valve 70. This water discharge valve 70 is a water discharge lever 70
The pressurized fire extinguishing water is supplied to the secondary side by operating the water discharge lever 70a to the open position. As shown in FIG. 1, the water discharge lever 70a is provided at an easily operable position on the front side of the door 2 opened from the cabinet case 1 to the front, and can be operated to the open position by falling from the closed position shown to the front.

Referring again to FIG. 8, subsequently, the pressure regulating valve 69
Is provided, and the secondary side is adjusted to a specified water discharge pressure. The secondary side of the pressure regulating valve 69 is branched into two systems, and is connected to the unwinding turbine unit 21 via the electromagnetic valve 25A, and the outlet line from the unwinding turbine unit 21 is connected to the secondary side of the electromagnetic valve 25B. After being connected and joined, it is connected to a hose 4 having a nozzle 5 at the tip.

The hose withdrawal detection signal E1 from the limit switch 50 of the tension detecting mechanism 45 shown in FIG.
When 1 is turned on, the controller 72 operates the solenoid valves 25A and 25A.
The drive signal E2 is output to B and the current is turned on to open the circuit. Further, the controller 72 controls the drive signal E3 for the motor 62 of the winding assist unit 61 connected by the connector cable 68 shown in FIG. 6 and the drive signal E4 for the motor 53 provided in the hose alignment mechanism 8 shown in FIG. It also has the function of outputting

The controller 72 opens the door 2 from the cabinet case 1 as shown in FIG.
When the hose 4 is pulled out in this state, a hose pull-out detection signal E1 due to the turning on of the limit switch 50 accompanying the tension detection when the hose 4 is pulled out is received, and the solenoid valve 25 is pulled.
In response to the output of the drive signal E2 for the A and 25B, the pressurized fire extinguishing water is supplied to the unwinding water turbine unit 21 to perform assist driving for assisting the driving force of the hose reel, and at the same time, the pressurized fire extinguishing water is supplied to the hose 4 and the nozzle 4 is supplied. 5 will be released.

On the other hand, at the time of the hose winding operation in which the winding assist unit 61 is connected as shown in FIG. 6, the drive signal E3 by the rotation of the motor 62 by operating the switch 67 provided on the winding assist unit 61 is output. Controller 72
Are detected, and the hoses are aligned so that the winding of the hoses is performed in order by driving the motor 53 provided in the hose alignment mechanism 8 shown in FIG.

FIG. 9 shows another embodiment of the fire hydrant apparatus of the present invention. In addition to the unwinding water wheel unit 21 shown in FIG. 2, a new winding water wheel unit used for winding a hose reel is provided. Features. In FIG. 9, the hose reel 3
The unwinding turbine unit 21 is the same as that of the embodiment shown in FIG. 2, and additionally, a winding-up water turbine unit 71 is arranged below the unwinding turbine unit 21. Winding turbine unit 71
For example, the same unit as the unwinding turbine unit 21 is arranged upside down so that the rotation direction of the turbine is reversed with respect to the unwinding turbine unit 21.

The piping system for the unwinding water turbine unit 21 is the same as that of FIG. 2, but in addition to this, the winding water turbine unit 71 is connected to a piping 23 for supplying pressurized fire extinguishing water.
Following f, an electromagnetic valve 25C is provided, and subsequently connected to a water turbine nozzle 74 of the water turbine unit 71 by a pipe 23g. Further, the pressurized fire extinguishing water when the pressurized fire extinguishing water is supplied to the unwinding water turbine unit 21 and the assist rotation is performed needs to flow not to the nozzle but to the drainage system. A drain pipe 23h is connected to the opposite side of the pipe 23c with respect to the bearing portion 71, and then a drain electromagnetic valve 25D is provided.

FIG. 10 is an explanatory diagram of a piping system and a control system of a controller when the unwinding water wheel unit 21 and the winding water wheel unit 71 are provided on the hose reel 3 of FIG. First, regarding the piping system, in addition to the piping system for the unwinding water turbine unit 21 in FIG. 8, the secondary side of the pressure regulating valve 69 is further branched,
The pressurized fire extinguishing water is supplied to the take-up water turbine unit 71 via the solenoid valve 25C. Further, the pipe from the take-up water turbine unit 71 is connected to a pipe system via an electromagnetic valve 25D.

A hose withdrawal detection signal E1 from the hose withdrawal detection limit switch 50 and a drive signal E4 for driving the motor 53 of the hose alignment mechanism 8 are output to the controller 72. Since the take-up assist unit 61 is provided with the take-up water wheel unit 71 instead of the take-up assist unit 61 in FIG. 6, the drive signal E5 for the solenoid valves 25C and 25D is provided. The controller 72 is provided with a winding switch 74 for notifying the winding operation.

The controller 72 shown in FIG. 10 is operated when the door 2 is opened from the cabinet case 1 as shown in FIG. Hose 4 while discharging water
The solenoid valve 25A, 25B is turned on by the drive signal E2 in response to the hose withdrawal detection signal E1 due to the turning on of the limit switch 50 at the time when the limit switch 50 is pulled out. Assist with supply. At this time, solenoid valve 2
The drive signal E5 for 5C and 25D is off, and the solenoid valves 25C and 25D are both closed.

Next, when winding the drawn hose for fire extinguishing, the winding switch 74 provided for the controller 72 is turned on while the water discharge lever 70a is being operated to the open position in front. Therefore, the controller 72 turns on the drive signal E5, energizes the solenoid valves 25C and 25D, and opens them. The pressurized fire extinguishing water flows into the wind-up water turbine unit 71 through the solenoid valve 25C, and the fire-extinguishing water that has passed through the wind-up water turbine unit 71 is drained from the electromagnetic valve 25D.

Therefore, the assist rotation of the hose reel is performed by the driving force of the wind-up water turbine unit 71 which has received the water flow of the pressurized fire extinguishing water, and the hose can be easily wound simply by pushing the hose lightly into the reel. Simultaneously with the winding of the hose, the controller 72 drives the motor 53 to operate the hose alignment mechanism 8 of FIG. 7. The hose is sequentially aligned with the drum unit 18 of the hose reel 3 by the hose alignment accompanying the winding of the hose. Be aligned.

In the above embodiment, the case where an unwinding water turbine unit is provided as the unwinding assist mechanism is taken as an example, but it is a matter of course that an electric motor may be used instead of the waterwheel unit. Furthermore, in the above embodiment, the case where both the unwinding assist mechanism and the winding assist mechanism are provided on the hose reel is taken as an example, but in the fire hydrant apparatus of the present invention, at least only the unwinding assist mechanism is provided. It may be something. In this respect, only the hose winding assist mechanism may be provided.

[0051]

As described above, according to the present invention, the provision of the unwinding assist mechanism for the hose reel has conventionally required a considerable force for unwinding the hose. The pulling force can be artificially reduced by applying a driving force, and the hose can be pulled out from the reel to the vicinity of the fire spot relatively easily while discharging water from the nozzle with the power of one adult, and the hose drawing distance becomes longer. However, it can respond sufficiently.

When the hose with the nozzle drawn out for fire extinguishing is wound around a hose reel, a winding assist mechanism for applying a rotational force to the hose reel in a hose winding direction to reduce an artificial hose winding force is provided. By providing, the hose can be wound simply by sending it lightly to the hose reel,
Even a hose having a weight and rigidity can be easily wound on a reel, and the operation of restoring the fire hydrant device can be performed easily and in a short time.

Further, a hose aligning mechanism for aligning the hose positions relative to the hose reel drum at the same time as the hose winding assist is provided, so that the hose winding position on the reel can be easily checked. It is only necessary to send the hose lightly to the hose reel without causing any trouble, and the hoses can be wound up in order and easily so as not to hinder the next hose withdrawal.

[Brief description of the drawings]

FIG. 1 is an explanatory view of an embodiment of a fire extinguisher apparatus of the present invention with a door opened.

FIG. 2 is an explanatory view of an unwinding assist mechanism and a reel of the present invention using a water wheel mechanism.

FIG. 3 is an explanatory view of the internal structure of the water wheel mechanism of FIG. 2;

FIG. 4 is an explanatory view of a shaft portion of the water turbine mechanism of FIG. 2;

FIG. 5 is an explanatory view of a tension detecting mechanism provided in the hose drawer of FIG. 2;

FIG. 6 is an explanatory view of a hose alignment mechanism provided in the hose winding section of FIG. 2;

FIG. 7 is an explanatory view of a winding assist mechanism according to the present invention.

FIG. 8 is an explanatory diagram of a piping system and a control system of a controller in FIG. 1;

FIG. 9 is an explanatory view of an embodiment of the present invention provided with an unwinding assist mechanism and a winding assist mechanism.

FIG. 10 is an explanatory diagram of a piping system and a control system of a controller in the embodiment of FIG. 9;

[Explanation of symbols]

 1: Cabinet case 2: Door 3: Hose reel 4: Hose 5: Nozzle 6: Guide gate 7: Tension detection pin 8: Hose alignment mechanism 9: Shock absorber 10: Connector 11: Switch 12: Fire extinguisher storage door 13: Fire Information board 14: Transmitter 15 :: Fire lamp 16a, 16b: Fixed frame 17: Support arm 18: Drum 19a, 19b: Face plate 20, 22: Bearing 21: Unwinding water wheel unit (unwinding assist mechanism) 23a- 23i: Piping 24, 74: Turbine nozzle part 25A to 25D: Solenoid valve 26: Hose connection part 27: Cover 28: Casing 30: Inlet fixed shaft pipe 31: Rotating shaft pipe 31a: Turbine shaft part 32: Outlet shaft pipe 33, 39: Bearing 34: Fixing ring 35, 40: Seal 36: O-ring 37: Spacer 38: B Kupin 45: tension detection mechanism 46: lever 47: fulcrum shaft 48: spring 49: brake pad 50: limit switch 51: screw shaft 56: lifter 57: guide shaft 58: guide lifter 59: support arm 60: hose ring 61: winding Take-off assist unit 63: Support frame 64: Coupling 65: Opening hole 66: Connection shaft 67: Winding switch 68: Connector cable 69: Pressure regulating valve 70: Water discharge valve 70a: Water discharge lever 71: Winding water wheel unit (winding Assist mechanism) 74: Rewind switch

Claims (8)

[Claims] 1. A fire hydrant device in which a hose with a nozzle is housed in a housing provided with a door that can be opened and closed while being wound around a reel, and the fire is extinguished by opening the door and pulling out the hose with a nozzle when extinguishing a fire. A fire hydrant device, comprising: an unwinding assist mechanism for applying a rotational force in a hose unwinding direction to the reel to reduce the hose withdrawing force when the hose with a nozzle is withdrawn. 2. The fire hydrant according to claim 1, wherein the unwinding assist mechanism is a water wheel mechanism driven by supplying pressurized fire extinguishing water to the hose with the nozzle. apparatus. 3. The fire hydrant apparatus according to claim 1, further comprising a controller for detecting a tension applied to the hose when the hose with the nozzle is pulled out and operating the unwinding assist mechanism. Fire hydrant device, characterized in that it is a water wheel mechanism. 4. The fire hydrant apparatus according to claim 1, further comprising, when winding the hose with the nozzle around the reel, applying a rotational force to the reel in a hose winding direction to reduce the hose winding force. A fire hydrant device comprising a winding assist mechanism for causing the hydrant. 5. The fire hydrant device according to claim 4, wherein the winding assist mechanism is a rotary drive mechanism using an electric motor as a drive source. 6. The fire hydrant device according to claim 5, wherein the winding assist mechanism is a rotary drive mechanism configured as a portable unit using an electric motor as a drive source. A fire hydrant device characterized in that a hose winding force is reduced by being mounted on a rotating shaft of a reel and driven. 7. The fire hydrant apparatus according to claim 3, wherein the winding assist mechanism is a water wheel mechanism driven by flowing pressurized fire extinguishing water to a drainage system. 8. The fire hydrant device according to claim 4, wherein said winding assist mechanism aligns a hose position on a reel in conjunction with winding of a hose by said reel. A fire hydrant device comprising: